Cowboys place Spencer on IR

Irving, TX (Sports Network) - The Dallas Cowboys have placed defensive end
Anthony Spencer on injured reserve because of a knee issue that will require
surgery.

Spencer will undergo a microfracture procedure on the same knee that needed
surgery in July. He didn't play during the preseason while recovering from the
operation and sat out the club's season-opener against the New York Giants
before returning for the Week 2 contest against Kansas City.

The 29-year-old Purdue product notched a pair of tackles in the loss to the
Chiefs, then was inactive for this past Sunday's game against St. Louis.

A 2007 first-round pick, Spencer was coming off an outstanding 2012 season in
which he set career highs of 11 sacks and 95 tackles. He is set to become an
unrestricted free agent in the offseason after being designated as Dallas'
franchise player for 2013.

The Cowboys filled the roster spot by signing cornerback Chris Greenwood off
the Detroit Lions' practice squad. Greenwood, a fifth-round Lions draft pick
in 2012, missed his entire rookie season because of a torn abdominal muscle
and was signed to Detroit's practice squad earlier this month after being
among the team's final cuts.